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Intracranial aneurysms

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https://www.readbyqxmd.com/read/28533994/infective-endocarditis-presenting-as-subarachnoid-hemorrhage-an-appeal-for-caution
#1
Talal Asif, Amena Mohiuddin, Badar Hasan, Amgad Masoud
Spontaneous subarachnoid hemorrhage (SAH) as the presenting feature of infective endocarditis (IE) is rare. It has classically been described in association with the rupture of intracranial mycotic aneurysms (ICMA). Here we describe a very rare case of non-aneurysmal spontaneous SAH in a patient with IE. The patient originally presented with a headache and low-grade fever. Neuroimaging including computed tomography (CT) and magnetic resonance imaging (MRI) of the head revealed SAH. She was eventually diagnosed with streptococcus gallolyticus (formerly streptococcus bovis) IE...
April 19, 2017: Curēus
https://www.readbyqxmd.com/read/28532918/subarachnoid-haemorrhage-in-germany-between-2010-2013-estimated-incidence-rates-based-on-a-nationwide-hospital-discharge-registry
#2
Jasper H van Lieshout, Igor Fischer, Marcel A Kamp, A R T Donders, Jan F Cornelius, Hans-Jakob Steiger, Hieronymus D Boogaarts, Athanasios K Petridis
BACKGROUND: Nordic countries are the primary source for nationwide data on the incidence of subarachnoid haemorrhage (SAH). Reliable estimates of national incidence rates of SAH in other countries are lacking, yet studies from Nordic countries with exceptional incidence rate are sometimes disregarded because of concerns regarding external validity. Autopsies are rarely performed for sudden deaths, therefore estimates of the SAH incidence commonly reflect the hospital discharge rates. Our aim was to estimate the nationwide incidence of non-traumatic SAH in Germany using a national hospital discharge register...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28530161/dual-microcatheter-coil-embolization-of-acutely-ruptured-wide-necked-intracranial-aneurysms
#3
Pyeong-Ho Yoon, Jae-Wook Lee, Yun-Ho Lee, Young-Sub Kwon, Kook-Hee Yang
The dual microcatheter technique is an alternative treatment for stent-assisted coiling in acutely ruptured wide-necked aneurysms because of no antiplatelet therapy. We assessed the safety and efficacy of this technique in ruptured wide-necked aneurysms. Between March 2008 and March 2016, 56 acutely ruptured aneurysms were treated with the dual microcatheter technique. The angiographic results, treatment-related complications, and clinical outcome were documented. Angiographic follow-up was available in 37 patients at a mean of 20...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28526648/somatosensory-evoked-potentials-during-temporary-arterial-occlusion-for-intracranial-aneurysm-surgery-predictive-value-for-perioperative-stroke
#4
Ahmed I Kashkoush, Brian T Jankowitz, Paul Gardner, Robert M Friedlander, Yue-Fang Chang, Donald J Crammond, Jeffrey R Balzer, Parthasarathy D Thirumala
BACKGROUND: Temporary arterial occlusion (TAO) is a valuable tool for minimizing intraoperative rupture risk during intracranial aneurysm microsurgery; however, it may also be associated with ischemic injury. OBJECTIVE: This study aims to identify surgical and intraoperative neurophysiological monitoring (IONM) factors that predict perioperative stroke risk after TAO. METHODS: We performed a retrospective chart review of 177 intracranial aneurysm surgeries at our institution, in which TAO was performed before the placement of a permanent clip under monitoring with somatosensory evoked potentials (SSEPs) and electroencephalography (EEG)...
May 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28526647/clipping-versus-coiling-in-anterior-circulation-ruptured-intracranial-aneurysms-a-meta-analysis
#5
REVIEW
George Fotakopoulos, Eleni Tsianaka, Kostas Fountas, Demosthenes Makris, Michael Spyrou, Juha Hernesniemi
BACKGROUND: The treatment plan with open surgical or endovascular repair in anterior circulation ruptured intracranial aneurysms must be taken on the basis of its special characteristics OBJECTIVE: To evaluate the possible superiority on outcomes, studying operative mortality (Op-Mo), permanent neurologic deficit (PND), late mortality (La-Mo) and need for re-intervention (re-iter), after open surgical and endovascular repair in anterior circulation ruptured intracranial aneurysms. METHODS: This Meta-Analysis included articles that compared outcomes of the two methods, published in full text form (last search performed on 06 December 2016)...
May 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28525979/the-association-between-lunar-phase-and-intracranial-aneurysm-rupture-myth-or-reality-own-data-and-systematic-review
#6
Adomas Bunevicius, Agne Gendvilaite, Vytenis Pranas Deltuva, Arimantas Tamasauskas
BACKGROUND: It is a common belief in medical community that lunar phases have an impact on human health. A growing body of evidence indicates that lunar phases can predict the risk to develop acute neurological and vascular disorders. The goal of present report was to present our institution data and to perform systematic review of studies examining the association of intracranial aneurysm rupture with moon phases. METHODS: We identified all patients admitted to our department for ruptured intracranial aneurysms in a period between November, 2011 and December, 2014...
May 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28524127/-an-acute-subdural-hematoma-caused-by-rupture-of-a-middle-cerebral-artery-aneurysm
#7
R S Dzhindzhikhadze, O N Dreval', V A Lazarev, R L Kambiev
Acute subdural hematoma caused by cerebral aneurysm rupture is rare. We describe a clinical case of an acute subdural hematoma developed due to rupture of an aneurysm at the M1 segment bifurcation of the middle cerebral artery (MCA). The acute subdural hematoma associated with intracranial hypertension and transtentorial herniation resulted in a comatose condition. The patient underwent decompressive craniectomy, hematoma removal, and clipping of the aneurysm. A significant improvement was observed in the postoperative period...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28524121/-the-use-of-high-flow-extracranial-intracranial-artery-bypass-in-pathology-of-the-cerebral-and-brachiocephalic-arteries-technical-features-and-surgical-outcomes
#8
A V Dubovoy, K S Ovsyannikov, V E Guzhin, A V Cherepanov, D M Galaktionov, A M Perfil'ev, A O Sosnov
BACKGROUND: Poor outcomes of surgical treatment for complex cerebral aneurysms due to the development of cerebral ischemia were the cause to use cerebral revascularization surgery for this pathology. OBJECTIVE: the study objective was to master a high-flow extracranial-intracranial (EC-IC) artery bypass technique and evaluate its application in surgical treatment of complex and giant cerebral aneurysms as well as complex lesions of the brachiocephalic arteries. MATERIAL AND METHODS: Fifty two patients underwent high-flow IC-EC bypass surgery; of these, 34 patients had complex cerebral aneurysms, and 18 patients had complex stenotic occlusive lesions of the brachiocephalic arteries...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28523215/migraine-prevalence-in-patients-with-unruptured-intracranial-aneurysms-a-case-control-study
#9
Elbert H Witvoet, Nadine Pelzer, Gisela M Terwindt, Gabriël J E Rinkel, Monique H M Vlak, Ale Algra, Marieke J H Wermer
OBJECTIVES: Migraine is a suggested risk factor for aneurysmal subarachnoid hemorrhage (aSAH). An increased risk of aSAH in migraineurs may be explained by an increased prevalence of unruptured intracranial aneurysms (UIA). We performed a case-control study to compare lifetime migraine prevalence in patients with UIA, patients with a history of transient ischemic attact (TIA) or ischemic stroke and controls without a history of aSAH, TIA or ischemic stroke. MATERIALS AND METHODS: Patients with UIA were recruited from two university hospitals...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28522664/non-contrast-enhanced-silent-scan-mr-angiography-of-intracranial-anterior-circulation-aneurysms-treated-with-a-low-profile-visualized-intraluminal-support-device
#10
N Takano, M Suzuki, R Irie, M Yamamoto, K Teranishi, K Yatomi, N Hamasaki, K K Kumamaru, M Hori, H Oishi, S Aoki
BACKGROUND AND PURPOSE: The Low-Profile Visualized Intraluminal Support Device comprises a small-cell nitinol structure and a single-wire braided stent that provides greater metal coverage than previously reported intracranial stents, as well as assumed strong susceptibility artifacts. This study aimed to assess the benefits of non-contrast-enhanced MRA by using a Silent Scan (Silent MRA) for intracranial anterior circulation aneurysms treated with Low-Profile Visualized Intraluminal Support Device stents...
May 18, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28521359/quantitative-comparison-of-the-intraoperative-utility-of-indocyanine-green-and-fluorescein-videoangiographies-in-cerebrovascular-surgery
#11
Fumihiro Matano, Takayuki Mizunari, Yasuo Murai, Asami Kubota, Yu Fujiki, Shiro Kobayashi, Akio Morita
BACKGROUND: A quantitative analysis comparing indocyanine green videoangiography (ICG-VAG) and fluorescein videoangiography (FL-VAG) in cerebrovascular surgery has not been reported so far. OBJECTIVE: To clear the differences of characteristics of ICG-VAG and FL-VAG by quantitative assessment. METHODS: We prospectively analyzed results from 23 patients (3 males; mean age at surgery: 60.9 years, range: 14-75 years) at our hospital from August 2014 to July 2015...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28521353/intraoperative-angiography-for-arteriovenous-malformation-resection-in-the-prone-and-lateral-positions-using-upper-extremity-arterial-access
#12
Erez Nossek, David J Chalif, Razvan Buciuc, Eric J Gandras, Erich G Anderer, Sal Insigna, Amir R Dehdashti, Avi Setton
BACKGROUND: Intraoperative angiography is routinely utilized for aneurysms and arteriovenous malformations (AVMs) to verify complete occlusion and resection. Surgery for spinal and posterior fossa neurovascular lesions is usually performed in prone position. Intraoperative angiography in the prone position is challenging and there is no standardized protocol for this procedure. OBJECTIVE: To describe our experience with intraoperative angiography in the prone and lateral positions, using upper extremity arterial access...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28516365/clipping-of-ruptured-intracranial-aneurysms-in-a-hybrid-room-environment-a-case-control-study
#13
Philipp Dammann, Max Jägersberg, Zsolt Kulcsar, Ivan Radovanovic, Karl Schaller, Philippe Bijlenga
BACKGROUND: Hybrid room treatment (HRT) provides the surgeon immediate intraoperative angiography control of aneurysm occlusion and vessel patency. Since it is relatively resource demanding, in clinical routine HRT is reserved for elective cases. However, since its introduction in our department in 2008, several random cases of ruptured intracranial aneurysms (IAs) have been treated in the HR. This study aims to compare the clinical and radiological outcomes of these cases with cases treated conventionally using a matched pair analysis...
May 17, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28515570/association-between-hemodynamic-modifications-and-clinical-outcome-of-intracranial-aneurysms-treated-using-flow-diverters
#14
Nikhil Paliwal, Robert J Damiano, Jason M Davies, Adnan H Siddiqui, Hui Meng
Treatment of intracranial aneurysms (IAs) has been revolutionized by the advent of endovascular Flow Diverters (FDs), which disrupt blood flow within the aneurysm to induce pro-thrombotic conditions, and serves as a scaffold for endothelial ingrowth and arterial remodeling. Despite good clinical success of FDs, complications like incomplete occlusion and post-treatment rupture leading to subarachnoid hemorrhage have been reported. In silico computational fluid dynamic analysis of the pre- and post-treated geometries of IA patients can shed light on the contrasting blood hemodynamics associated with different clinical outcomes...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28503487/discrepancy-between-angiography-and-operative-findings-of-small-side-wall-aneurysms-in-atherosclerotic-parent-arteries
#15
Sook Young Sim
Preoperative evaluation of precise aneurysmal geometry is important for the treatment of intracranial aneurysms. We present two cases of unclippable side wall aneurysms due to their extremely low dome height, which appeared as saccular in the preoperative image because of a comparatively narrow atherosclerotic parent arterial lumen. In both cases, a calcified vessel wall was noted preoperatively. Lack of a definitive neck and abrupt discrepancy between the fragile aneurysmal wall and the atherosclerotic parent arterial wall was confirmed intraoperatively in both cases...
March 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28502970/is-regular-screening-for-intracranial-aneurysm-necessary-in-patients-with-autosomal-dominant-polycystic-kidney-disease-a-systematic-review-and-meta-analysis
#16
Zien Zhou, Ying Xu, Candice Delcourt, Jiehui Shan, Qiang Li, Jianrong Xu, Maree L Hackett
BACKGROUND: The prevalence of intracranial aneurysm in patients with autosomal dominant polycystic kidney disease (ADPKD) is higher than that among the general population. We performed a systematic review and meta-analysis on the prevalence and natural history of intracranial aneurysm among patients with ADPKD. METHODS: Medline, Embase, Web of Science and Scopus, from inception to July 2016, were searched for studies reporting the occurrence of intracranial aneurysms among participants with ADPKD...
May 13, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28501811/haemodynamic-analysis-for-recanalisation-of-intracranial-aneurysms-after-endovascular-treatment-an-observational-registry-study-in-china
#17
Jian Liu, Yisen Zhang, Anxin Wang, Ying Zhang, Yiying Li, Xinjian Yang
INTRODUCTION: Recanalisation of intracranial aneurysms following endovascular treatment is a major issue. Many factors, including aneurysm morphology, the method of treatment, and haemodynamics, are considered to be associated with recanalisation. However, the underlying haemodynamic mechanisms are not completely understood. METHODS AND ANALYSIS: This is a prospective, observational, registry study for patients with intracranial aneurysms who are treated endovascularly...
May 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28499904/completely-thrombosed-distal-middle-cerebral-artery-aneurysm-mimicking-a-cavernous-angioma-case-report-and-review-of-the-literature
#18
Sokol Trungu, Placido Bruzzaniti, Stefano Forcato, Marco Cimatti, Antonino Raco
BACKGROUND: Distal middle cerebral artery (MCA) aneurysms originate from branches of MCA distal to its main bifurcation or the peripheral branches. Distal MCA aneurysms are uncommon compared to saccular aneurysms developing along the proximal trunks of MCA. However, thrombotic aneurysms, characterized by organized intraluminal thrombus and solid mass, are frequently in the large and giant size range, while complete thrombosis of non-giant MCA aneurysms is very rare. CASE PRESENTATION: We present the clinical case of a 53 years-old woman with a completely thrombosed medium distal MCA aneurysm which mimics a cavernous angioma...
May 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28498930/risk-factors-for-intracranial-aneurysm-rupture-a-systematic-review
#19
Rachel Kleinloog, Nikki de Mul, Bon H Verweij, Jan Andries Post, Gabriel J E Rinkel, Ynte M Ruigrok
BACKGROUND: Intracranial aneurysm rupture prediction is poor, with only a few risk factors for rupture identified and used in clinical practice. OBJECTIVE: To provide an overview of all the risk factors (including genetic, molecular, morphological, and hemodynamic factors) that have potential for use in clinical practice. METHODS: We systematically searched PubMed and EMBASE and focused on factors that can be easily assessed in clinical practice, might be used for rupture prediction in clinical practice, and/or are potential targets for further research...
May 11, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28497591/hypophosphatemia-after-nontraumatic-intracranial-hemorrhage
#20
E Junttila, J Koskenkari, T Ala-Kokko
BACKGROUND: The aim of this study was to assess the incidence and contributing factors of hypophosphatemia and the association with poor long-term outcome after nontraumatic intracranial hemorrhage. METHODS: This was a prospective, observational study of patients with nontraumatic intracranial hemorrhage (i.e., aneurysmal or perimesencephalic subarachnoid hemorrhage, or spontaneous intracerebral or intraventricular hemorrhage) treated in the intensive care unit (ICU) at our university hospital...
May 11, 2017: Acta Anaesthesiologica Scandinavica
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